a vote on a separate plan by california democrat dine feinstein to ban assault weapons and high-capacity ammunition magazines was delayed. the federal aviation administration today approved boeing's plan to redesign the troubled batteries on its 787 "dreamliner." in several instances, the lithium ion batteries have overheated or caught fire. as a result, the entire fleet of "dreamliners" was grounded earlier this year. the f.a.a. says extensive testing of the redesigned batteries will be needed before the planes can return to service. the top u.s. intelligence official warned today that north korea's tough talk and provocative actions pose a serious challenge. national intelligence director james clapper appeared at a senate hearing on global threats. clapper said north korea's young leader, kim jong un, is proving unpredictable. his regime recently staged a long-range missile launch and nuclear test, and has threatened a nuclear strike against the u.s. . >> the rhetoric propaganda-laced is also an indicator of their attitude and perhaps their intent. for my part i am very concerned abou